# Copyright 2012-2017 The Meson development team # Licensed under the Apache License, Version 2.0 (the "License"); # you may not use this file except in compliance with the License. # You may obtain a copy of the License at # http://www.apache.org/licenses/LICENSE-2.0 # Unless required by applicable law or agreed to in writing, software # distributed under the License is distributed on an "AS IS" BASIS, # WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. # See the License for the specific language governing permissions and # limitations under the License. import subprocess, os.path, tempfile from .. import mlog from .. import coredata from . import compilers from ..mesonlib import ( EnvironmentException, version_compare, Popen_safe, listify, for_windows, for_darwin, for_cygwin, for_haiku, ) from .compilers import ( GCC_MINGW, get_largefile_args, gnu_winlibs, msvc_buildtype_args, msvc_buildtype_linker_args, msvc_winlibs, vs32_instruction_set_args, vs64_instruction_set_args, ClangCompiler, Compiler, CompilerArgs, CrossNoRunException, GnuCompiler, IntelCompiler, RunResult, ) class CCompiler(Compiler): def __init__(self, exelist, version, is_cross, exe_wrapper=None): # If a child ObjC or CPP class has already set it, don't set it ourselves if not hasattr(self, 'language'): self.language = 'c' super().__init__(exelist, version) self.id = 'unknown' self.is_cross = is_cross self.can_compile_suffixes.add('h') if isinstance(exe_wrapper, str): self.exe_wrapper = [exe_wrapper] else: self.exe_wrapper = exe_wrapper def needs_static_linker(self): return True # When compiling static libraries, so yes. def get_always_args(self): ''' Args that are always-on for all C compilers other than MSVC ''' return ['-pipe'] + get_largefile_args(self) def get_linker_debug_crt_args(self): """ Arguments needed to select a debug crt for the linker This is only needed for MSVC """ return [] def get_no_stdinc_args(self): return ['-nostdinc'] def get_no_stdlib_link_args(self): return ['-nostdlib'] def get_warn_args(self, level): return self.warn_args[level] def get_no_warn_args(self): # Almost every compiler uses this for disabling warnings return ['-w'] def get_soname_args(self, prefix, shlib_name, suffix, path, soversion, is_shared_module): return [] def split_shlib_to_parts(self, fname): return None, fname # The default behavior is this, override in MSVC def build_rpath_args(self, build_dir, from_dir, rpath_paths, build_rpath, install_rpath): if self.id == 'clang' and self.clang_type == compilers.CLANG_OSX: return self.build_osx_rpath_args(build_dir, rpath_paths, build_rpath) return self.build_unix_rpath_args(build_dir, from_dir, rpath_paths, build_rpath, install_rpath) def get_dependency_gen_args(self, outtarget, outfile): return ['-MMD', '-MQ', outtarget, '-MF', outfile] def depfile_for_object(self, objfile): return objfile + '.' + self.get_depfile_suffix() def get_depfile_suffix(self): return 'd' def get_exelist(self): return self.exelist[:] def get_linker_exelist(self): return self.exelist[:] def get_preprocess_only_args(self): return ['-E', '-P'] def get_compile_only_args(self): return ['-c'] def get_no_optimization_args(self): return ['-O0'] def get_compiler_check_args(self): ''' Get arguments useful for compiler checks such as being permissive in the code quality and not doing any optimization. ''' return self.get_no_optimization_args() def get_output_args(self, target): return ['-o', target] def get_linker_output_args(self, outputname): return ['-o', outputname] def get_coverage_args(self): return ['--coverage'] def get_coverage_link_args(self): return ['--coverage'] def get_werror_args(self): return ['-Werror'] def get_std_exe_link_args(self): return [] def get_include_args(self, path, is_system): if path == '': path = '.' if is_system: return ['-isystem', path] return ['-I' + path] def get_std_shared_lib_link_args(self): return ['-shared'] def get_library_dirs(self): stdo = Popen_safe(self.exelist + ['--print-search-dirs'])[1] for line in stdo.split('\n'): if line.startswith('libraries:'): libstr = line.split('=', 1)[1] return libstr.split(':') return [] def get_pic_args(self): return ['-fPIC'] def name_string(self): return ' '.join(self.exelist) def get_pch_use_args(self, pch_dir, header): return ['-include', os.path.split(header)[-1]] def get_pch_name(self, header_name): return os.path.split(header_name)[-1] + '.' + self.get_pch_suffix() def get_linker_search_args(self, dirname): return ['-L' + dirname] def get_default_include_dirs(self): return [] def gen_import_library_args(self, implibname): """ The name of the outputted import library This implementation is used only on Windows by compilers that use GNU ld """ return ['-Wl,--out-implib=' + implibname] def sanity_check_impl(self, work_dir, environment, sname, code): mlog.debug('Sanity testing ' + self.get_display_language() + ' compiler:', ' '.join(self.exelist)) mlog.debug('Is cross compiler: %s.' % str(self.is_cross)) extra_flags = [] source_name = os.path.join(work_dir, sname) binname = sname.rsplit('.', 1)[0] if self.is_cross: binname += '_cross' if self.exe_wrapper is None: # Linking cross built apps is painful. You can't really # tell if you should use -nostdlib or not and for example # on OSX the compiler binary is the same but you need # a ton of compiler flags to differentiate between # arm and x86_64. So just compile. extra_flags += self.get_cross_extra_flags(environment, link=False) extra_flags += self.get_compile_only_args() else: extra_flags += self.get_cross_extra_flags(environment, link=True) # Is a valid executable output for all toolchains and platforms binname += '.exe' # Write binary check source binary_name = os.path.join(work_dir, binname) with open(source_name, 'w') as ofile: ofile.write(code) # Compile sanity check cmdlist = self.exelist + extra_flags + [source_name] + self.get_output_args(binary_name) pc, stdo, stde = Popen_safe(cmdlist, cwd=work_dir) mlog.debug('Sanity check compiler command line:', ' '.join(cmdlist)) mlog.debug('Sanity check compile stdout:') mlog.debug(stdo) mlog.debug('-----\nSanity check compile stderr:') mlog.debug(stde) mlog.debug('-----') if pc.returncode != 0: raise EnvironmentException('Compiler {0} can not compile programs.'.format(self.name_string())) # Run sanity check if self.is_cross: if self.exe_wrapper is None: # Can't check if the binaries run so we have to assume they do return cmdlist = self.exe_wrapper + [binary_name] else: cmdlist = [binary_name] mlog.debug('Running test binary command: ' + ' '.join(cmdlist)) pe = subprocess.Popen(cmdlist) pe.wait() if pe.returncode != 0: raise EnvironmentException('Executables created by {0} compiler {1} are not runnable.'.format(self.language, self.name_string())) def sanity_check(self, work_dir, environment): code = 'int main(int argc, char **argv) { int class=0; return class; }\n' return self.sanity_check_impl(work_dir, environment, 'sanitycheckc.c', code) def has_header(self, hname, prefix, env, extra_args=None, dependencies=None): fargs = {'prefix': prefix, 'header': hname} code = '''{prefix} #ifdef __has_include #if !__has_include("{header}") #error "Header '{header}' could not be found" #endif #else #include <{header}> #endif''' return self.compiles(code.format(**fargs), env, extra_args, dependencies, 'preprocess') def has_header_symbol(self, hname, symbol, prefix, env, extra_args=None, dependencies=None): fargs = {'prefix': prefix, 'header': hname, 'symbol': symbol} t = '''{prefix} #include <{header}> int main () {{ /* If it's not defined as a macro, try to use as a symbol */ #ifndef {symbol} {symbol}; #endif }}''' return self.compiles(t.format(**fargs), env, extra_args, dependencies) def _get_compiler_check_args(self, env, extra_args, dependencies, mode='compile'): if extra_args is None: extra_args = [] elif isinstance(extra_args, str): extra_args = [extra_args] if dependencies is None: dependencies = [] elif not isinstance(dependencies, list): dependencies = [dependencies] # Collect compiler arguments args = CompilerArgs(self) for d in dependencies: # Add compile flags needed by dependencies args += d.get_compile_args() if d.need_threads(): args += self.thread_flags(env) if mode == 'link': # Add link flags needed to find dependencies args += d.get_link_args() if d.need_threads(): args += self.thread_link_flags(env) # Select a CRT if needed since we're linking if mode == 'link': args += self.get_linker_debug_crt_args() # Read c_args/cpp_args/etc from the cross-info file (if needed) args += self.get_cross_extra_flags(env, link=(mode == 'link')) if not self.is_cross: if mode == 'preprocess': # Add CPPFLAGS from the env. args += env.coredata.external_preprocess_args[self.language] elif mode == 'compile': # Add CFLAGS/CXXFLAGS/OBJCFLAGS/OBJCXXFLAGS from the env args += env.coredata.external_args[self.language] elif mode == 'link': # Add LDFLAGS from the env args += env.coredata.external_link_args[self.language] args += self.get_compiler_check_args() # extra_args must override all other arguments, so we add them last args += extra_args return args def compiles(self, code, env, extra_args=None, dependencies=None, mode='compile'): args = self._get_compiler_check_args(env, extra_args, dependencies, mode) # We only want to compile; not link with self.compile(code, args.to_native(), mode) as p: return p.returncode == 0 def _links_wrapper(self, code, env, extra_args, dependencies): "Shares common code between self.links and self.run" args = self._get_compiler_check_args(env, extra_args, dependencies, mode='link') return self.compile(code, args) def links(self, code, env, extra_args=None, dependencies=None): with self._links_wrapper(code, env, extra_args, dependencies) as p: return p.returncode == 0 def run(self, code, env, extra_args=None, dependencies=None): if self.is_cross and self.exe_wrapper is None: raise CrossNoRunException('Can not run test applications in this cross environment.') with self._links_wrapper(code, env, extra_args, dependencies) as p: if p.returncode != 0: mlog.debug('Could not compile test file %s: %d\n' % ( p.input_name, p.returncode)) return RunResult(False) if self.is_cross: cmdlist = self.exe_wrapper + [p.output_name] else: cmdlist = p.output_name try: pe, so, se = Popen_safe(cmdlist) except Exception as e: mlog.debug('Could not run: %s (error: %s)\n' % (cmdlist, e)) return RunResult(False) mlog.debug('Program stdout:\n') mlog.debug(so) mlog.debug('Program stderr:\n') mlog.debug(se) return RunResult(True, pe.returncode, so, se) def _compile_int(self, expression, prefix, env, extra_args, dependencies): fargs = {'prefix': prefix, 'expression': expression} t = '''#include {prefix} int main() {{ static int a[1-2*!({expression})]; a[0]=0; return 0; }}''' return self.compiles(t.format(**fargs), env, extra_args, dependencies) def cross_compute_int(self, expression, low, high, guess, prefix, env, extra_args, dependencies): if isinstance(guess, int): if self._compile_int('%s == %d' % (expression, guess), prefix, env, extra_args, dependencies): return guess cur = low while low < high: cur = int((low + high) / 2) if cur == low: break if self._compile_int('%s >= %d' % (expression, cur), prefix, env, extra_args, dependencies): low = cur else: high = cur if self._compile_int('%s == %d' % (expression, cur), prefix, env, extra_args, dependencies): return cur raise EnvironmentException('Cross-compile check overflowed') def compute_int(self, expression, low, high, guess, prefix, env, extra_args=None, dependencies=None): if extra_args is None: extra_args = [] if self.is_cross: return self.cross_compute_int(expression, low, high, guess, prefix, env, extra_args, dependencies) fargs = {'prefix': prefix, 'expression': expression} t = '''#include {prefix} int main(int argc, char **argv) {{ printf("%ld\\n", (long)({expression})); return 0; }};''' res = self.run(t.format(**fargs), env, extra_args, dependencies) if not res.compiled: return -1 if res.returncode != 0: raise EnvironmentException('Could not run compute_int test binary.') return int(res.stdout) def cross_sizeof(self, typename, prefix, env, extra_args=None, dependencies=None): if extra_args is None: extra_args = [] fargs = {'prefix': prefix, 'type': typename} t = '''#include {prefix} int main(int argc, char **argv) {{ {type} something; }}''' if not self.compiles(t.format(**fargs), env, extra_args, dependencies): return -1 return self.cross_compute_int('sizeof(%s)' % typename, 1, 128, None, prefix, env, extra_args, dependencies) def sizeof(self, typename, prefix, env, extra_args=None, dependencies=None): if extra_args is None: extra_args = [] fargs = {'prefix': prefix, 'type': typename} if self.is_cross: return self.cross_sizeof(typename, prefix, env, extra_args, dependencies) t = '''#include {prefix} int main(int argc, char **argv) {{ printf("%ld\\n", (long)(sizeof({type}))); return 0; }};''' res = self.run(t.format(**fargs), env, extra_args, dependencies) if not res.compiled: return -1 if res.returncode != 0: raise EnvironmentException('Could not run sizeof test binary.') return int(res.stdout) def cross_alignment(self, typename, prefix, env, extra_args=None, dependencies=None): if extra_args is None: extra_args = [] fargs = {'prefix': prefix, 'type': typename} t = '''#include {prefix} int main(int argc, char **argv) {{ {type} something; }}''' if not self.compiles(t.format(**fargs), env, extra_args, dependencies): return -1 t = '''#include {prefix} struct tmp {{ char c; {type} target; }};''' return self.cross_compute_int('offsetof(struct tmp, target)', 1, 1024, None, t.format(**fargs), env, extra_args, dependencies) def alignment(self, typename, prefix, env, extra_args=None, dependencies=None): if extra_args is None: extra_args = [] if self.is_cross: return self.cross_alignment(typename, prefix, env, extra_args, dependencies) fargs = {'prefix': prefix, 'type': typename} t = '''#include #include {prefix} struct tmp {{ char c; {type} target; }}; int main(int argc, char **argv) {{ printf("%d", (int)offsetof(struct tmp, target)); return 0; }}''' res = self.run(t.format(**fargs), env, extra_args, dependencies) if not res.compiled: raise EnvironmentException('Could not compile alignment test.') if res.returncode != 0: raise EnvironmentException('Could not run alignment test binary.') align = int(res.stdout) if align == 0: raise EnvironmentException('Could not determine alignment of %s. Sorry. You might want to file a bug.' % typename) return align def get_define(self, dname, prefix, env, extra_args, dependencies): delim = '"MESON_GET_DEFINE_DELIMITER"' fargs = {'prefix': prefix, 'define': dname, 'delim': delim} code = ''' {prefix} #ifndef {define} # define {define} #endif {delim}\n{define}''' args = self._get_compiler_check_args(env, extra_args, dependencies, mode='preprocess').to_native() with self.compile(code.format(**fargs), args, 'preprocess') as p: if p.returncode != 0: raise EnvironmentException('Could not get define {!r}'.format(dname)) # Get the preprocessed value after the delimiter, # minus the extra newline at the end return p.stdo.split(delim + '\n')[-1][:-1] def get_return_value(self, fname, rtype, prefix, env, extra_args, dependencies): if rtype == 'string': fmt = '%s' cast = '(char*)' elif rtype == 'int': fmt = '%lli' cast = '(long long int)' else: raise AssertionError('BUG: Unknown return type {!r}'.format(rtype)) fargs = {'prefix': prefix, 'f': fname, 'cast': cast, 'fmt': fmt} code = '''{prefix} #include int main(int argc, char *argv[]) {{ printf ("{fmt}", {cast} {f}()); }}'''.format(**fargs) res = self.run(code, env, extra_args, dependencies) if not res.compiled: m = 'Could not get return value of {}()' raise EnvironmentException(m.format(fname)) if rtype == 'string': return res.stdout elif rtype == 'int': try: return int(res.stdout.strip()) except: m = 'Return value of {}() is not an int' raise EnvironmentException(m.format(fname)) @staticmethod def _no_prototype_templ(): """ Try to find the function without a prototype from a header by defining our own dummy prototype and trying to link with the C library (and whatever else the compiler links in by default). This is very similar to the check performed by Autoconf for AC_CHECK_FUNCS. """ # Define the symbol to something else since it is defined by the # includes or defines listed by the user or by the compiler. This may # include, for instance _GNU_SOURCE which must be defined before # limits.h, which includes features.h # Then, undef the symbol to get rid of it completely. head = ''' #define {func} meson_disable_define_of_{func} {prefix} #include #undef {func} ''' # Override any GCC internal prototype and declare our own definition for # the symbol. Use char because that's unlikely to be an actual return # value for a function which ensures that we override the definition. head += ''' #ifdef __cplusplus extern "C" #endif char {func} (); ''' # The actual function call main = ''' int main () {{ return {func} (); }}''' return head, main @staticmethod def _have_prototype_templ(): """ Returns a head-er and main() call that uses the headers listed by the user for the function prototype while checking if a function exists. """ # Add the 'prefix', aka defines, includes, etc that the user provides # This may include, for instance _GNU_SOURCE which must be defined # before limits.h, which includes features.h head = '{prefix}\n#include \n' # We don't know what the function takes or returns, so return it as an int. # Just taking the address or comparing it to void is not enough because # compilers are smart enough to optimize it away. The resulting binary # is not run so we don't care what the return value is. main = '''\nint main() {{ void *a = (void*) &{func}; long b = (long) a; return (int) b; }}''' return head, main def has_function(self, funcname, prefix, env, extra_args=None, dependencies=None): """ First, this function looks for the symbol in the default libraries provided by the compiler (stdlib + a few others usually). If that fails, it checks if any of the headers specified in the prefix provide an implementation of the function, and if that fails, it checks if it's implemented as a compiler-builtin. """ if extra_args is None: extra_args = [] # Short-circuit if the check is already provided by the cross-info file varname = 'has function ' + funcname varname = varname.replace(' ', '_') if self.is_cross: val = env.cross_info.config['properties'].get(varname, None) if val is not None: if isinstance(val, bool): return val raise EnvironmentException('Cross variable {0} is not a boolean.'.format(varname)) fargs = {'prefix': prefix, 'func': funcname} # glibc defines functions that are not available on Linux as stubs that # fail with ENOSYS (such as e.g. lchmod). In this case we want to fail # instead of detecting the stub as a valid symbol. # We already included limits.h earlier to ensure that these are defined # for stub functions. stubs_fail = ''' #if defined __stub_{func} || defined __stub___{func} fail fail fail this function is not going to work #endif ''' # If we have any includes in the prefix supplied by the user, assume # that the user wants us to use the symbol prototype defined in those # includes. If not, then try to do the Autoconf-style check with # a dummy prototype definition of our own. # This is needed when the linker determines symbol availability from an # SDK based on the prototype in the header provided by the SDK. # Ignoring this prototype would result in the symbol always being # marked as available. if '#include' in prefix: head, main = self._have_prototype_templ() else: head, main = self._no_prototype_templ() templ = head + stubs_fail + main if self.links(templ.format(**fargs), env, extra_args, dependencies): return True # MSVC does not have compiler __builtin_-s. if self.get_id() == 'msvc': return False # Detect function as a built-in # # Some functions like alloca() are defined as compiler built-ins which # are inlined by the compiler and you can't take their address, so we # need to look for them differently. On nice compilers like clang, we # can just directly use the __has_builtin() macro. fargs['no_includes'] = '#include' not in prefix t = '''{prefix} int main() {{ #ifdef __has_builtin #if !__has_builtin(__builtin_{func}) #error "__builtin_{func} not found" #endif #elif ! defined({func}) /* Check for __builtin_{func} only if no includes were added to the * prefix above, which means no definition of {func} can be found. * We would always check for this, but we get false positives on * MSYS2 if we do. Their toolchain is broken, but we can at least * give them a workaround. */ #if {no_includes:d} __builtin_{func}; #else #error "No definition for __builtin_{func} found in the prefix" #endif #endif }}''' return self.links(t.format(**fargs), env, extra_args, dependencies) def has_members(self, typename, membernames, prefix, env, extra_args=None, dependencies=None): if extra_args is None: extra_args = [] fargs = {'prefix': prefix, 'type': typename, 'name': 'foo'} # Create code that accesses all members members = '' for member in membernames: members += '{}.{};\n'.format(fargs['name'], member) fargs['members'] = members t = '''{prefix} void bar() {{ {type} {name}; {members} }};''' return self.compiles(t.format(**fargs), env, extra_args, dependencies) def has_type(self, typename, prefix, env, extra_args, dependencies=None): fargs = {'prefix': prefix, 'type': typename} t = '''{prefix} void bar() {{ sizeof({type}); }};''' return self.compiles(t.format(**fargs), env, extra_args, dependencies) def symbols_have_underscore_prefix(self, env): ''' Check if the compiler prefixes an underscore to global C symbols ''' symbol_name = b'meson_uscore_prefix' code = '''#ifdef __cplusplus extern "C" { #endif void ''' + symbol_name.decode() + ''' () {} #ifdef __cplusplus } #endif ''' args = self.get_cross_extra_flags(env, link=False) args += self.get_compiler_check_args() n = 'symbols_have_underscore_prefix' with self.compile(code, args, 'compile') as p: if p.returncode != 0: m = 'BUG: Unable to compile {!r} check: {}' raise RuntimeError(m.format(n, p.stdo)) if not os.path.isfile(p.output_name): m = 'BUG: Can\'t find compiled test code for {!r} check' raise RuntimeError(m.format(n)) with open(p.output_name, 'rb') as o: for line in o: # Check if the underscore form of the symbol is somewhere # in the output file. if b'_' + symbol_name in line: return True # Else, check if the non-underscored form is present elif symbol_name in line: return False raise RuntimeError('BUG: {!r} check failed unexpectedly'.format(n)) def get_library_naming(self, env, libtype): ''' Get library prefixes and suffixes for the target platform ordered by priority ''' stlibext = ['a'] # We've always allowed libname to be both `foo` and `libfoo`, # and now people depend on it prefixes = ['lib', ''] # Library suffixes and prefixes if for_darwin(env.is_cross_build(), env): shlibext = ['dylib'] elif for_windows(env.is_cross_build(), env): # FIXME: .lib files can be import or static so we should read the # file, figure out which one it is, and reject the wrong kind. if self.id == 'msvc': shlibext = ['lib'] else: shlibext = ['dll.a', 'lib', 'dll'] # Yep, static libraries can also be foo.lib stlibext += ['lib'] elif for_cygwin(env.is_cross_build(), env): shlibext = ['dll', 'dll.a'] prefixes = ['cyg'] + prefixes else: # Linux/BSDs shlibext = ['so'] # Search priority if libtype in ('default', 'shared-static'): suffixes = shlibext + stlibext elif libtype == 'static-shared': suffixes = stlibext + shlibext elif libtype == 'shared': suffixes = shlibext elif libtype == 'static': suffixes = stlibext else: raise AssertionError('BUG: unknown libtype {!r}'.format(libtype)) return prefixes, suffixes def find_library(self, libname, env, extra_dirs, libtype='default'): # These libraries are either built-in or invalid if libname in self.ignore_libs: return [] # First try if we can just add the library as -l. code = 'int main(int argc, char **argv) { return 0; }' if extra_dirs and isinstance(extra_dirs, str): extra_dirs = [extra_dirs] # Gcc + co seem to prefer builtin lib dirs to -L dirs. # Only try to find std libs if no extra dirs specified. if not extra_dirs and libtype == 'default': args = ['-l' + libname] if self.links(code, env, extra_args=args): return args # Ensure that we won't modify the list that was passed to us extra_dirs = extra_dirs[:] # Search in the system libraries too extra_dirs += self.get_library_dirs() # Not found or we want to use a specific libtype? Try to find the # library file itself. prefixes, suffixes = self.get_library_naming(env, libtype) # Triply-nested loop! for d in extra_dirs: for suffix in suffixes: for prefix in prefixes: trial = os.path.join(d, prefix + libname + '.' + suffix) if os.path.isfile(trial): return [trial] return None def thread_flags(self, env): if for_haiku(self.is_cross, env): return [] return ['-pthread'] def thread_link_flags(self, env): if for_haiku(self.is_cross, env): return [] return ['-pthread'] def has_multi_arguments(self, args, env): return self.compiles('int i;\n', env, extra_args=args) class ClangCCompiler(ClangCompiler, CCompiler): def __init__(self, exelist, version, clang_type, is_cross, exe_wrapper=None): CCompiler.__init__(self, exelist, version, is_cross, exe_wrapper) ClangCompiler.__init__(self, clang_type) default_warn_args = ['-Wall', '-Winvalid-pch'] self.warn_args = {'1': default_warn_args, '2': default_warn_args + ['-Wextra'], '3': default_warn_args + ['-Wextra', '-Wpedantic']} def get_options(self): return {'c_std': coredata.UserComboOption('c_std', 'C language standard to use', ['none', 'c89', 'c99', 'c11', 'gnu89', 'gnu99', 'gnu11'], 'none')} def get_option_compile_args(self, options): args = [] std = options['c_std'] if std.value != 'none': args.append('-std=' + std.value) return args def get_option_link_args(self, options): return [] def get_linker_always_args(self): basic = super().get_linker_always_args() if self.clang_type == compilers.CLANG_OSX: return basic + ['-Wl,-headerpad_max_install_names'] return basic class GnuCCompiler(GnuCompiler, CCompiler): def __init__(self, exelist, version, gcc_type, is_cross, exe_wrapper=None, defines=None): CCompiler.__init__(self, exelist, version, is_cross, exe_wrapper) GnuCompiler.__init__(self, gcc_type, defines) default_warn_args = ['-Wall', '-Winvalid-pch'] self.warn_args = {'1': default_warn_args, '2': default_warn_args + ['-Wextra'], '3': default_warn_args + ['-Wextra', '-Wpedantic']} def get_options(self): opts = {'c_std': coredata.UserComboOption('c_std', 'C language standard to use', ['none', 'c89', 'c99', 'c11', 'gnu89', 'gnu99', 'gnu11'], 'none')} if self.gcc_type == GCC_MINGW: opts.update({ 'c_winlibs': coredata.UserArrayOption('c_winlibs', 'Standard Win libraries to link against', gnu_winlibs), }) return opts def get_option_compile_args(self, options): args = [] std = options['c_std'] if std.value != 'none': args.append('-std=' + std.value) return args def get_option_link_args(self, options): if self.gcc_type == GCC_MINGW: return options['c_winlibs'].value[:] return [] def get_std_shared_lib_link_args(self): return ['-shared'] def get_pch_use_args(self, pch_dir, header): return ['-fpch-preprocess', '-include', os.path.split(header)[-1]] class IntelCCompiler(IntelCompiler, CCompiler): def __init__(self, exelist, version, icc_type, is_cross, exe_wrapper=None): CCompiler.__init__(self, exelist, version, is_cross, exe_wrapper) IntelCompiler.__init__(self, icc_type) self.lang_header = 'c-header' default_warn_args = ['-Wall', '-w3', '-diag-disable:remark', '-Wpch-messages'] self.warn_args = {'1': default_warn_args, '2': default_warn_args + ['-Wextra'], '3': default_warn_args + ['-Wextra', '-Wpedantic']} def get_options(self): c_stds = ['c89', 'c99'] g_stds = ['gnu89', 'gnu99'] if version_compare(self.version, '>=16.0.0'): c_stds += ['c11'] opts = {'c_std': coredata.UserComboOption('c_std', 'C language standard to use', ['none'] + c_stds + g_stds, 'none')} return opts def get_option_compile_args(self, options): args = [] std = options['c_std'] if std.value != 'none': args.append('-std=' + std.value) return args def get_std_shared_lib_link_args(self): return ['-shared'] def has_multi_arguments(self, args, env): return super().has_multi_arguments(args + ['-diag-error', '10006'], env) class VisualStudioCCompiler(CCompiler): std_warn_args = ['/W3'] std_opt_args = ['/O2'] ignore_libs = ('m', 'c', 'pthread') def __init__(self, exelist, version, is_cross, exe_wrap, is_64): CCompiler.__init__(self, exelist, version, is_cross, exe_wrap) self.id = 'msvc' # /showIncludes is needed for build dependency tracking in Ninja # See: https://ninja-build.org/manual.html#_deps self.always_args = ['/nologo', '/showIncludes'] self.warn_args = {'1': ['/W2'], '2': ['/W3'], '3': ['/W4']} self.base_options = ['b_pch'] # FIXME add lto, pgo and the like self.is_64 = is_64 # Override CCompiler.get_always_args def get_always_args(self): return self.always_args def get_linker_debug_crt_args(self): """ Arguments needed to select a debug crt for the linker Sometimes we need to manually select the CRT (C runtime) to use with MSVC. One example is when trying to link with static libraries since MSVC won't auto-select a CRT for us in that case and will error out asking us to select one. """ return ['/MDd'] def get_buildtype_args(self, buildtype): return msvc_buildtype_args[buildtype] def get_buildtype_linker_args(self, buildtype): return msvc_buildtype_linker_args[buildtype] def get_pch_suffix(self): return 'pch' def get_pch_name(self, header): chopped = os.path.split(header)[-1].split('.')[:-1] chopped.append(self.get_pch_suffix()) pchname = '.'.join(chopped) return pchname def get_pch_use_args(self, pch_dir, header): base = os.path.split(header)[-1] pchname = self.get_pch_name(header) return ['/FI' + base, '/Yu' + base, '/Fp' + os.path.join(pch_dir, pchname)] def get_preprocess_only_args(self): return ['/EP'] def get_compile_only_args(self): return ['/c'] def get_no_optimization_args(self): return ['/Od'] def get_output_args(self, target): if target.endswith('.exe'): return ['/Fe' + target] return ['/Fo' + target] def get_dependency_gen_args(self, outtarget, outfile): return [] def get_linker_exelist(self): return ['link'] # FIXME, should have same path as compiler. def get_linker_always_args(self): return ['/nologo'] def get_linker_output_args(self, outputname): return ['/OUT:' + outputname] def get_linker_search_args(self, dirname): return ['/LIBPATH:' + dirname] def get_gui_app_args(self): return ['/SUBSYSTEM:WINDOWS'] def get_pic_args(self): return [] # PIC is handled by the loader on Windows def get_std_shared_lib_link_args(self): return ['/DLL'] def gen_vs_module_defs_args(self, defsfile): if not isinstance(defsfile, str): raise RuntimeError('Module definitions file should be str') # With MSVC, DLLs only export symbols that are explicitly exported, # so if a module defs file is specified, we use that to export symbols return ['/DEF:' + defsfile] def gen_pch_args(self, header, source, pchname): objname = os.path.splitext(pchname)[0] + '.obj' return objname, ['/Yc' + header, '/Fp' + pchname, '/Fo' + objname] def gen_import_library_args(self, implibname): "The name of the outputted import library" return ['/IMPLIB:' + implibname] def build_rpath_args(self, build_dir, from_dir, rpath_paths, build_rpath, install_rpath): return [] # FIXME, no idea what these should be. def thread_flags(self, env): return [] def thread_link_flags(self, env): return [] def get_options(self): return {'c_winlibs': coredata.UserArrayOption('c_winlibs', 'Windows libs to link against.', msvc_winlibs) } def get_option_link_args(self, options): return options['c_winlibs'].value[:] @classmethod def unix_args_to_native(cls, args): result = [] for i in args: # -mms-bitfields is specific to MinGW-GCC # -pthread is only valid for GCC if i in ('-mms-bitfields', '-pthread'): continue if i.startswith('-L'): i = '/LIBPATH:' + i[2:] # Translate GNU-style -lfoo library name to the import library elif i.startswith('-l'): name = i[2:] if name in cls.ignore_libs: # With MSVC, these are provided by the C runtime which is # linked in by default continue else: i = name + '.lib' # -pthread in link flags is only used on Linux elif i == '-pthread': continue result.append(i) return result def get_werror_args(self): return ['/WX'] def get_include_args(self, path, is_system): if path == '': path = '.' # msvc does not have a concept of system header dirs. return ['-I' + path] # Visual Studio is special. It ignores some arguments it does not # understand and you can't tell it to error out on those. # http://stackoverflow.com/questions/15259720/how-can-i-make-the-microsoft-c-compiler-treat-unknown-flags-as-errors-rather-t def has_multi_arguments(self, args, env): warning_text = '9002' code = 'int i;\n' (fd, srcname) = tempfile.mkstemp(suffix='.' + self.default_suffix) os.close(fd) with open(srcname, 'w') as ofile: ofile.write(code) # Read c_args/cpp_args/etc from the cross-info file (if needed) extra_args = self.get_cross_extra_flags(env, link=False) extra_args += self.get_compile_only_args() commands = self.exelist + args + extra_args + [srcname] mlog.debug('Running VS compile:') mlog.debug('Command line: ', ' '.join(commands)) mlog.debug('Code:\n', code) p, stdo, stde = Popen_safe(commands, cwd=os.path.split(srcname)[0]) if p.returncode != 0: return False return not(warning_text in stde or warning_text in stdo) def get_compile_debugfile_args(self, rel_obj, pch=False): pdbarr = rel_obj.split('.')[:-1] pdbarr += ['pdb'] args = ['/Fd' + '.'.join(pdbarr)] # When generating a PDB file with PCH, all compile commands write # to the same PDB file. Hence, we need to serialize the PDB # writes using /FS since we do parallel builds. This slows down the # build obviously, which is why we only do this when PCH is on. # This was added in Visual Studio 2013 (MSVC 18.0). Before that it was # always on: https://msdn.microsoft.com/en-us/library/dn502518.aspx if pch and version_compare(self.version, '>=18.0'): args = ['/FS'] + args return args def get_link_debugfile_args(self, targetfile): pdbarr = targetfile.split('.')[:-1] pdbarr += ['pdb'] return ['/DEBUG', '/PDB:' + '.'.join(pdbarr)] def get_link_whole_for(self, args): # Only since VS2015 args = listify(args) return ['/WHOLEARCHIVE:' + x for x in args] def get_instruction_set_args(self, instruction_set): if self.is_64: return vs64_instruction_set_args.get(instruction_set, None) if self.version.split('.')[0] == '16' and instruction_set == 'avx': # VS documentation says that this exists and should work, but # it does not. The headers do not contain AVX intrinsics # and the can not be called. return None return vs32_instruction_set_args.get(instruction_set, None) def get_toolset_version(self): # See boost/config/compiler/visualc.cpp for up to date mapping try: version = int(''.join(self.version.split('.')[0:2])) except: return None if version < 1310: return '7.0' elif version < 1400: return '7.1' # (Visual Studio 2003) elif version < 1500: return '8.0' # (Visual Studio 2005) elif version < 1600: return '9.0' # (Visual Studio 2008) elif version < 1700: return '10.0' # (Visual Studio 2010) elif version < 1800: return '11.0' # (Visual Studio 2012) elif version < 1900: return '12.0' # (Visual Studio 2013) elif version < 1910: return '14.0' # (Visual Studio 2015) elif version < 1920: return '14.1' # (Visual Studio 2017) return None def get_default_include_dirs(self): if 'INCLUDE' not in os.environ: return [] return os.environ['INCLUDE'].split(os.pathsep)